Question

我在Windows Phone 8 / 8.1中找到了很多示例，但我似乎无法为Window 10 UWP找到一个。

所以我需要的是图像上的可移动textBlock。我似乎不知道如何加载图像，写一些文本然后保存它。

Code I目前有[不起作用]

//first, create a dummy bitmap just to get a graphics object
            Image img = new Bitmap(1, 1);
            Graphics drawing = Graphics.FromImage(img);

            //measure the string to see how big the image needs to be
            SizeF textSize = drawing.MeasureString(text, font);

            //free up the dummy image and old graphics object
            img.Dispose();
            drawing.Dispose();

            //create a new image of the right size
            img = new Bitmap((int)textSize.Width, (int)textSize.Height);

            drawing = Graphics.FromImage(img);

            //paint the background
            drawing.Clear(backColor);

            //create a brush for the text
            Brush textBrush = new SolidBrush(textColor);

            drawing.DrawString(text, font, textBrush, 0, 0);

            drawing.Save();

            textBrush.Dispose();
            drawing.Dispose();

Answer 1

这里需要RenderTargetBitmap是Windows应用商店应用（8.1）的一个示例，对UWP应用仍然有效 http://social.technet.microsoft.com/wiki/contents/articles/20648.using-the-rendertargetbitmap-in-windows-store-apps-with-xaml-and-c.aspx

以下是使用RenderTargetBitmap的UWP应用程序的MSDN文档 https://msdn.microsoft.com/library/windows/apps/dn298548

我建议您将文本块放在Grid（容器）中并按照示例进行操作。

最好的问候

在图像上保存textBlock

1 个答案: